The number of knots used for spline model parameters.
num_knots(range = c(0L, 5L), trans = NULL)
A two-element vector holding the defaults for the smallest and largest possible values, respectively. If a transformation is specified, these values should be in the transformed units.
A trans
object from the scales
package, such as
scales::transform_log10()
or scales::transform_reciprocal()
. If not provided,
the default is used which matches the units used in range
. If no
transformation, NULL
.
One context in which this parameter is used is spline basis functions.